GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2008 🢒 Sierra - 4WD 🢒 Transmission/Transaxle 🢒 Transfer Case - BW 4485-NR3 🢒 Input Shaft Seal Replacement

Tools Required

    • J 36825 Output Shaft Oil Seal Remover
    • J 23907 Slide Hammer with Bearing Adapter
    • J 42738 Front Output Shaft Seal Installer

Removal Procedure

    Object Number: 1728910 Size: SH
  1. Remove the transfer case. Refer to Transfer Case Assembly Replacement .

    2. Important: It may be necessary to use a sharp punch in order to poke a hole into the seal prior to inserting J 36825 .

  2. Using the J 23907  (1), and J 36825  (2), remove the input seal.

Installation Procedure

    Object Number: 1728908 Size: SH
  1. Using the J 42738 , install the input shaft seal.
  2. Install the transfer case. Refer to Transfer Case Assembly Replacement .